//引入 react
import React from 'react';
//引入 react-dom
import ReactDOM from 'react-dom';
//引入 App 组件
import App from './components/App';
//创建虚拟 DOM 对象
// let vDOM = <h2>Hello React 脚手架</h2>
//渲染
ReactDOM.render(<App />, document.querySelector("#root"));